Our recording room has two straight walls and one curved wall joining the other two. One of the straight walls and the curved wall is of rock, while the other straight wall is mainly glass doors and windows.

We put foam mattress against the glass wall, mainly to stop bird and wind noise coming in (we have bush [forrest] surrounding our home).
The room is not too lively and not dead; kind of ideal really.

I am unable to afford acoustic treatment at the moment, but am able to hang blankets, doonas and mattreses if needed.

My question it this.

Which wall should we face to get the least amound of reflection; should it be the curved wall or one of the straight ones, or even the vertex.

You can best answer that by simply doing some test tracks facing different directions. It will depend on the mic type and the singer's position relative to both the mic and the room.

-john

Thanks john, I appreciate your reply.

I probably didn't state my question clearly enough though.

Whilst what you are saying is true, I'm really wanting to know if there is anyone out there that has some really serious knowledge on acoustics. I'm trying to find out how sound behaves on a curved wall as opposed to flat walls? More specifically, when they are opposite each other, how would the acoustics behave?

Any takers???

how is the wall curved? concave? if so, it will act to focus the sound which can be problematic. convex would be better as it would help to diffuse the sound somewhat. if you were to place a 2' wide fabric covered 703 absorber about 1' from the center of the concave wall from floor to ceiling, it would probably help (depth of curve vs absorber position being relative...)